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    <title>Document</title>
    <style>
        body {
            color: red;
            /* font-weight: bold; */
            font-weight: normal;
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        a {
            color: inherit;
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        h1 {
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            font-weight: 500;
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<body>

    <h1>呵呵</h1>
    <p>哈哈</p>
    <a href="">嘿嘿</a>

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